Heck send the frame to tony so he can possibly make that rear upper motor mount for the 86-87 frames so you can run a 88-89 swingarm. And maybe make some lower motor mounts also.
I was just heckling Tony about this the other day. I would love it if somenoe were making a "weld in" rear motor mount for the 86-87 frames so you can put the 88-89 swingarm on them.
My first R had a frame that was similar to this. I sold it for $75 to a guy that said he was going to chop it up and build a drag frame.